The Vice President serves as the President of the Senate and presides over its sessions. In this role, they ensure order and decorum, recognize Senators to speak, and put forth motions for votes. However, the Vice President doesn't usually participate in debates or vote except to break ties. When the votes in the Senate are tied, the Vice President's vote becomes decisive.
Succession to the presidency:
The Vice President is first in the line of succession to the presidency. If the President becomes unable to fulfill their duties or is removed from office, the Vice President becomes the new President.
Performing diplomatic and ceremonial duties:
The Vice President often assists the President in diplomatic and ceremonial functions. They may represent the United States in international events, meet with foreign dignitaries, and participate in state visits. Additionally, the Vice President may conduct swearing-in ceremonies or give commencement speeches as requested by the President.